<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <!-- v-bind管  节点中的属性 动态绑定 无需操作 DOM -->
    <a id="a" title="上海卫视" href="#">aaaaa</a>
    <a id="b" title="上海卫视" href="#">aaaaa</a>
    <a id="c" title="上海卫视" href="#">aaaaa</a>
    <a id="d" title="上海卫视" href="#">aaaaa</a>
    <a id="e" title="上海卫视" href="#">aaaaa</a>
    <a id="f" title="上海卫视" href="#">aaaaa</a>
    <input type="button" value="changeTitle" onclick="javascript:document.getElementById('a').title='xx卫视1';" />
    <input type="button" value="changeTitle" onclick="javascript:document.getElementById('b').title='xx卫视2';" />
    <input type="button" value="changeTitle" onclick="javascript:document.getElementById('c').title='广州卫视';" />
    <input type="button" value="changeTitle" onclick="javascript:document.getElementById('d').title='广州卫视';" />
    <input type="button" value="changeTitle" onclick="javascript:document.getElementById('e').title='广州卫视';" />
    <input type="button" value="changeTitle" onclick="javascript:document.getElementById('f').title='广州卫视';" />
</body>
</html>